import java.util.Scanner;

public class Test {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);

        while (in.hasNextInt()) {
            int n=in.nextInt(); // 注意 while 处理多个 case
            for (int i = 0;i<n; i++) {
                for (int j = 0;j<n; j++) {
                    if (i == j) {
                        System.out.print("*");
                    }
                    else if(i+j==n-1){
                        System.out.print("*");
                    }

                    else{
                        System.out.print(" ");
                    }

                }
                System.out.print("\n");
            }

        }
    }
}
